Method of producing glassware



Aug. 5 1924- J. A. MlLLlKEN METHOD OF PRODUCING GLASSWARE Eile'd Anrii s. 1921 $635; Z2 ATTORNEY.

INVENTOR. A. AM

Patented Aug. 5, 1924, i

lTED STATE JOHN A. minimum, or, carom, new .rnasny, Assreuon 'ro .ronn n. mnsnnn, on

' nee Hanson crrr, NEW Jnnsmr.

METHOD OF PRODUCING GLASSWABE.

Application filed April 8, 1921. Serial No. 459,651.

To all whom it may concern:

Be it known that I, J 015m A. a citizen of the United States, residing in Bayonne, county of Hudson, State of New J ersey, have invented certain new and useful Improvements in Methods of Froducmg Glassware, of which the following is a specification. I

My invention relates to a method of pro ducing glassware in general, and more particularly drinking glasses, tumblers and analogous or other articles; and my mvention relates more particularly to productlon of such glassware and the ornamentation 5! thereof, as by cutting or grinding.

In accordance with my invention, the article is formed of glass, as by blowing or forming in a mold, or otherwise, wlth an 1ntegral extension or projection by which it is held and rotated while the article itself is severed from the extension or projection, 01'

is first ground or otherwise ornamented or operated upon and then severed from the extension. Y

My invention resides in the method of the character hereinafter described and claimed.

' ceiving a piece to be operate upon.

.glass in any suitable way, as by Fig. 3- is a cross sectional view on the line 3-3 of Fig. 1.

Fig. 4; is a crosssectional view on the line 4-4 of Fig. 1.

Fig. 5 is an elevational view, part1 in section, showing an article and its me or extension within a mold.

Fig. 6 is an elevational view of a finished article roduced by my method.

Fig.2 is an elevational view, partly m section-{of a piece of stem ware within a mold. :The' article, as a tumbler T, is formed of blowin is same .within a mold a "ortion M 0 which isshown in Fig. 5. ere is blown or formed integzal therewith the extension or neck E, whic preferably terminates in a bead, ridge or rib B. The external surface I of theextension, as of the neck E as well as of the bead B, is concentric with. the article T itself; that is, the outer surfaces. of the article T as well as of its extension or bead B are concentric with respect to the axis a.

While I have shown a neck with a bead, it

will be understood that the extension may during the blowing operation to the blow- 'pipe 0.

Referring to Figs. 1 to 4 inclusive, C is a chuck body driven by the hollow shaft S supported by the bearing d and rotated by any suitable means, as for example, the belt 6, which drives the pulley f. secured to the shaft S. Extending through the hollow shaft S is the'shaft 0r rod 9 attached at its .end to the bar k, which extends through the slot 2' in the shaft S. Fingers j are plvoted to the bar It at 7:, and are disposed in slots m in the chuck body C. The ends of the fingers j are urged toward the axis of the chuck by springs n, thereby forcing the In 0 into engagement with the bead B, whic is engaged on its opposite side by the longitudina y ielding member 70', disposed in the bore 0 the me her C and thrust against the bead B by spri gs g. Extending across the slots m in the m mber C are the pins 0", with which co-act the cams or inclined surfaces 8 on'the fingers 9'. Upon the shaft 9 is a collar .6, between which and the abutment u is confined the helical spring within the shaft 8. At its outer end the shaft 9 has secured thereto the slotted collar into which extends a pin w'carried by the ever 3 pivoted at a.

By thrusting the shaft 9 toward the left, as indicated in Fig. 2, in opposition to spring 1) by lever y, the bar h moves the fingers 9' toward .the left, causing them by their suritself and its extension comes into contactwith the mouth of the chuck O, which may be provided with a pad 0 of rubber or other suitable material.

The article is therefore supported with its axis coincident with the axis of rotation of the chuck or holder structure, this coincidence resulting from the fact that the extension, or one or more parts thereof, is or are truly co-axial with the article or tumbler T itself.

The article and its neck or extension are preferably annealed after their initial production, as in the mold M or otherwise, and a before introduction into the holding or chuck structure.

While held in the chuck structure, the latter is rotated at suitable speed, leaving the entire or substantially entire article T projecting free for allowance of any operation thereon. The chuck may be rotated-"continuously, to cause decorative bands to be cut on the article, as shown in Fig. 6, or may be rotated intermittently to permit the cutting of a series of circumferentially spaced indentations.

While so held or held and rotated, the

- article T may be decorated, as by cutting or grinding in well known way, as by a cutter or grinding wheel W, which may take various different positions accordingto the design to be out, such cutter or grinding wheel effecting the ornamentation or decoration one example of which is indicated. in Fi 6.

After the article has been decorate or otherwise suitably operated upon, it is sevheat,as by flame or otherwise, to cause completion of severance by cracking, which generally necessitates subsequenta plication of heat, asby flame, to the severe edge ofthe article. s l

By again actuating the lever 3 the neck or extension will be released by the chuck structure, from which it is then removed, and the neck or extension integral with anindicated in Fig. 1.

. tation.

other article is introduced to the position While in Figs. 1 and 5 I have indicated .a simple form of tumbler, it will be understood that the article may be of any suitable or desirable shape. Another example is in dicated in Fi 7. In this instance the article is one o stem Ware, having a stem 6 and a main or cup portion T having the integralneck E, by which it is held and r0- tated with its axis a co-inciclent with the axis of rotation. 1

In accordance with my 1nethod,-the article itself is not directly held while in rotation for cutting or other operation, but is held and rotated by an integral extension having suitable holder-engaging surface or surfaces substantially accurately F co-axial with the axisof the article itself, whereby thearticle when rotated runs true. f

By this method it is unnecessary to grasp or hold the article itself for rotation thereof,

as by means extending into the interior thereof, or by other means.

What I claim is:

1. The method of producing a receptacle of glass, which consists in forming said receptacle of glass with an integral extension having a shoulder and at a distance therefrom longitudinally a ridge both having axes coincident with the axis of said receptacle, holding and rotating said extension by said shoulder and ridge, and operating upon said rece tacle while integral with and rotated by sai extension.

2. The method of producing a receptacle of glass, which consists in forming a receptacle with an integral extension having portions of different diameters concentric with the axis of said receptacle and spaced from each other longitudinally of said axis, supporting said receptacle by holding said extension at said portions of different diameters, rotating said receptacle by rotating said extension, and operating upon the rewith an integral extension provided with a shoulder portion, exerting tension on said extension in a direction longitudinally thereof for holding said shoulder portion against an abutment, rotating said article, and operating upon the article while in re- 5. The method of producing a receptacle of glass, which consists in forming said receptacle with an integral extension having ashoulder and at a distance therefrom longitudinally a ridge both having axes coincident with the axis of saiol' receptacle, holding and rotating said extension by said shoulder and ridge, grinding said receptacle While integral with the said extension, and thereafter while in rotation severing said receptacle and extension from each other.

6. The method of producing an article of glass, which consists in forming said article with an integral extension provided with a shoulder portion, exerting tension on said extension in a direction thereof for holding said shoulder portion against an abutment,

and operating upon the article while so he (1. y

7 The method of producing an article of glass, which consists in forming said article withan integral extension provided with a shoulder portion, exerting'tension on said extension in a direction longitudinally thereof for holding said shoulder portion against an abutment, decorating said article by grinding while so held, and thereafter while rotating severing said article from said extension.

In testimony whereof I have hereunto aifixed my signature this 31st day of March, 1921.

longitudinally JOHN A. MILLIKEN. 

